Akademik Veri Yönetim Sistemi
HEAT AND MASS TRANSFER, cilt.59, sa.6, ss.1059-1071, 2023 (SCI-Expanded)
This work investigated the energetic and exergetic performances of evacuated tube solar collectors (ETSCs) that are used to heat experimentally in a room constructed at Cukurova University in Adana, Turkey. The system occurs with one, two, three, and four ETSCs, three radiators, a pump, a calorimeter, a data logger, and a room. In the system, ETSCs are used to store solar radiation as thermal energy in the tank for heating a room during the evening. For this reason, four sunny days were selected to do four experiments with one, two, three, and four ETSCs in January. This month is the coldest month of the year in Adana. Thermodynamic analyzes were performed to better understand the system throughout the experiments. Thus, one, two, three, and four ETSCs could be used to heat such a room that has a total floor area of 22.5 m(2) and a volume of 67.5 m(3). As a result, the energetic efficiency of the system for one, two, three, and four ETSCs are obtained as 13.18%, 13.85%, 16.27, and 18.03%, respectively. The exergy efficiency of the system for one, two, three, and four collectors are found as 0.33%, 0.52%, 0.64%, and 0.77%, respectively. According to the obtained results, it is possible to heat the room using only ETSCs. However, it was found that as the number of ETSCs used to heat the system increased from one to four, the energetic and exergetic performances of the system reached a higher level and the experiment took longer.